Variants of a mold are catalogued separately, so each one has its own sets and minifigs. Check these too if something you expect is missing here.

• 19727pr0002 Minifig Head Special, Cube with Rear Ledge, Pixelated Black, White and Dark Red Face, Dark Pink Snout Outline Print (Pig) Alternate of this part
• 19727 Minifig Head Special, Cube with Rear Ledge [Plain] this part is a print of it